This is very interesting snowflake: with big and flat central hexagon (almost without any features), relief outer rim and arms with many ridges - quite unusual combination. This is medium size snow crystal, just 3 millimeters from tip to tip; but that large and empty center was easily noticeable even with naked eye, and it instantly attract my attention. This snowflake remind me sunflower: with short, broad icy "petals" and inner "lines of seeds".

8 identical RAW photos, taken as quick series, was averaged to boost signal-to-noise ratio of this picture. Snowflake was captured on glass background with LED back light, with additional lens Helios 44M-5, in Moscow, Russia.

I already processed two more snowflakes from same amazing snowfall of January 3, 2016: Winter fortress and Serenity:

And here is another snowflake from previous winter: Dusty mirror - it slightly remind me new one: this crystal also have big and flat central hexagon, where only visible feature is pattern of tiny dots, relief outer rim and short arms with nice details: